Air-line oiler



mg.. 112, 1924.. C C HANSEN Lm/193m AIR LINE OILER Filed Nov. 17. 1923 SEN, 01E' NEON, PENNSYLWAV a COANY, OlF JERSEY CITY, llt' l e111,

Application nlccl November 17, wat. aerial tto. t,l.

To all whom it may concern:

Be it known that l, CHARLES C. Hansen, a citizen of thelUnited States, and a resident of Easton, Northampton County, and

5 State of `Penns lvania, have invented a certain Air-Line iler, of which the following is a specification, accompanied by drawings.

'lFhis invention relates to air -line oilers, but more particularly to an oiler adapted to be connected to an air line tor conveying lubricant to duid actuated machines such as rock drills, grinders, rotary drills or similar tools.

Rock drills and pneumatic tools such as riveters and rotary drills require constant lubrication in order to obtain a maximum amount ol work, and to maintain the ma.

chine in running condition for an extended length oi'I time. Lubrication is an especially important problem with rock drills which are used underground in'mines because the miners Otten neglect to lubricate their drills or they are required to travel a considerable distance lor lubricant when their machines run dry. Une ol the reasons lor the loss ot lubricant is that the water which is Aused in most drills lor cleansing the drilled hole olten backs up into the operative parts of the drill and washes awa the lubricant and within a short period o` time the drill refuses to operate..-

Rock drills are usually provided with a lubricant reservoir which must be periodil cally filled with vlubricant but this 1s somelill what unsatisl'actory tor the reason that 'dirt and grit etten enters these reservoirs, or the miners lorget to ll the reservoirs'upon starting work. llt has been proposed to carr lubricant to these drills through the medium ot the motive Huid supply but the objection to this method has been the fact that either too much lubricant is carried with the air so as to materiallyadect the elhcient running of the machine or on the other hand insucient lubricant is carried and the machines likewise Suder on this account.

lln accordance with the resent invention, the above diculties have een overcome by an air line oiler or lubricator which has been tound to carry sucient lubricant lor the emcient o eration ol the machines. By means el t is invention, drills may be kept running lor any entended period el time,

'quate lubrication throu .supplyg vlulnrieant te the and the miner does not have to botr with the lubricating ot his drill, because automatically taken care ol in the air line, and as soon as he manipulates the throttle to admit motive duid to his drill, lubricant is carried by this duid to all ol the operative parts ot the machine.

One object of the present invention is to enable Huid actuated machines such 'roch drills and pneumatic tools to ive adethe motive duid sup lie to the mace.

Another object o the resent invention is to produce an air line o1 er which enablm air passing through the oiler to carry away a predetermined amount ol lubricant. A further ob'ect ol the invention' is to produce an air line oiler having a member' which is adapted to be saturated with lubricant and which the duid passing thereover tends to dry.

Further objects ol the invention all hereinafter appear and the invention is shown in one ol its preferred embodiments in the accompanyin drawings, in whichhi re 1 is a vertical sectional view elan air line oiler and a portion el a roclr drill connected together by a suitable hose line, an

`Figure Q is a horizontal sectional view taken on line 2--2 ol Figure l, looking in the direction ot the arrows.

Referring to the drawings, A deriates the casing et' an air linie oiler with l ich a lubricant reservoir B is in this instance integrally termede 'llhe casing A is prelerabl termed with a hollow bose ,C throuh whicg air passes into the casin tro an air line which is'controlled by a suitable throttle valve D. Air trom the air line is adapted to pass' through the casing A and out through hollow bosses lil preterably :llormed on the casi. Suitable valve casinge ll having valves lll are prelerabl connected to the bosses li and'hose linea are adapted to be attached to the valve casin lor conveying motive duid wherever ded. .Any` suitable number oil' besace may be rovioled according to the number ol heee a desired, and il" there are more bosses th heee lines desired, some ol the valves lll ay ha closed.

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ltlll at the opposite end for holding the screen securely in position. t

A recess R 1s preferably formed 1n each of the bosses E and each recess commumcates with the reservoir B through a small port S. A plug T preferably closes one end of each recess R and the opposite end of the recess opens into the casing A. A plug or cartridge U preferably composed of wire gauze and absorbent material, such as felt, wound together is located in each recess R and in this instance is adapted to be forced upwardly by a coil sprin V which bears against the inner end of t e plug U at one end and the closure plug T at the opposite end. The ends of the cartridge U are preferably closed by washers W and X and a bolt YA passes through the washers W and X and the center of the cartridge. ln order 4to create a pressure on the lubricant in the reservoir B, a port Z in the annular wall G forms a communication between the casing A and the inside of the reservoir. Pressure thus created in the reservoir forces the lubricant from the reservoir B through the port S into the recess R. The absorbent material in the plugs will constantly become saturated with lubricant from the reservoir and as the air passes through the casing A and over the exposed portion of the plugs U, the air will tend to dry the lubricant from the plugs and carry this lubricant along with it through the hose lines F. A partition or web E preferably separates the recesses R from each other so that when no air passes through the bosses E, dead spaces are created around these absorbent cartridges U, but when some of the valves 1 ?2 are open and others closed, the cartridges 1 n the open passages will serve to supply lubricant to the air current passing from the casing, but those cartridges in the dead spaces will be inactive, because air currents are prevented by the webs E', so that no lubr1cant will be. wasted.

In order to adjust the position of the plug U in the recess'R and vary the amount of surface exposed to the air passing through the casing, a set screw a is preferably threaded in the top H of the casing A and bears against the washer W, so that by adjusting the position of the set screw a against the spring V, the position of the plug U in the recess R may be varied. A lock nut b on the set screw a enables the set screw to be locked in the desired position of adjustment. By screwing down on the set screw a. the plug U will be moved into the recess R against the resistance of the coil spring V and the surface exposed to the current of air passing through the casing will be reduced, and by unscrewing the set screw a the surface exposed to the air current will be increased and more lubricant will be carfried away by the air. In this manner the amount of lubricant carried by the air current can be readily varied. A' plug c is in this instance threaded into an aperture in the top of the casing A, and if desired, the throttle D for'the air line may be connected in said aperture instead of the plug c.' A plug d in the reservoir B permits access to the interior of the reservoir.

For purposesof illustration, a rock drill c is shown connected to one of the hose lines F, the admission of motive fluid thereto being controlled by a suitable throttle valve e', and in this instance the rock drill comprises a cylinder f, in which a piston q having a forward lluted extension 71, is adapted to reciprocate. A rifle bar j extends into the piston gand is provided with a head lc carrying the pawls 0 which cooperate with a ratchet ring p for imparting rotation lo the piston g. A back head is secured to the cylinder f by the usual side rods and a \`valve chest 1 is connected to the cylinder g by the bolts s. A motive fluid distributing valve t of the sbutterfly type, is located in the valve chest r. As motive fluid passes from the air line through the casing A it tends to dry the plug U, and carries lubricant through the hose line F to the rock drill e and thus lubricates the valve t, piston g and other working parts of the drill. Although a rock drill is shown for the purpose of illustration, it` is to be understood that the above described air line oiler may be used in connection with any type of machine which is operated by pressure fluid, such as compressed air. Any suitable number of hose line connections ma be provided 1n the casing A to aceemmo ate as many fluid actuated machines as desired, and each machine will receive suflicient lubrication by means of the air current to obtain eflicient will whereby said current tends to dry the exposed portion of said cartridge and carries away small particles of lubricant.

2. An air line oiler comprising al casing adapted -to be connected to an air line, a cartridge chamber in said casing, an absorbent cartridge in said chamber, an oil reservoir in the lower portion ot' said casing subject to the air pressure in said upper passage adapted to supply lubricant to said cartridge chamber and cartridge, and means for adjusting the position of said cartridge in said chamber to expose a greater or less portion of the upper end surface tothe air passing through the passage in the upper portion of said casing whereby the air tends to dry the exposed portion of said cartridge and carries away small particles of lubricant through the air line- 3. An air line oilercomprising a casing adapted to be connected to an air line, a cartridge chamber in the casing, a cartridge in said chamber composed of absorbent material and Jforaminous material, a reservoir for lubricant in the lower portion of the casing subject to the air pressure in said upper passage for .supplying lubricant to said cartridge chamber and cartridge and adjusting means for exposing a greater or less portion of the upper end of said cartridge to the air current passing through said ,casing wherebyl the air tends to dry the exposed portion of said cartridge and carries -away lubricant as it passes from said casing.

4. An air line oiler comprising a casing adapted to be connected to an air line, bosses on said casing toy which hose lines are adapted to be connected, absorbent cartridges in said casing adjacent said bosses,.means for supplying lubricant to said cartridges and means for adjusting the position of said cartridges for exposing a greater 'or less surface to an air current passing through said casing whereby the air current carries a greater or less amount of lubricant from said casing.

5. An air line oiler comprising a casing adapted t0 be connected to an a1r line, an oil reservoir in said casing, a hollow boss carried by said casing through which an air current is adapted to p ass from the casing, a cartridge in said boss adapted to receive lubricant from said reservoir, whereby the air assing through said casing tends to dry sai cartridge, and means for adjusting the position of said cartrldge to vary the ksurface exposed to the air current and thereby regulate the amount of lubricant carried away by the air.

6. An air line-oiler comprising a casing adapted to be connected to an air line, a reservoir in said casing, means for supplying lubricant to said reservoir, means for admittino air to said casing, hollow bosses through which air is adapted a pass from said casing, an absorbent cartridge in each of said bosses adapted to be impregnated with lubricant from said reservoir, and means for adjusting the position of said cartridge relative to the air current passing through said casing' for regulating the amount of lubricant carried away by the air.

7. An air line oiler comprising a casing adaptedfto he connected to an air line, a, lubricant reservoir in said casing, means for supplying lubricant to said reservoir, means for admitting air to said casing, outwardly extending hollov.v bosses on said casing through which air is adaptedto pass from said casing, a cartridge composed of wire gauze and absorbent material wound together in each of said bosses adapted to be impregnated with lubricant from said reservoir, an-d means for exposing a portion of said cartridge to the air current passing through the casing.

8. n air line oiler comprising a casing adapted to be connected to an air line, a lubricant reservoir in said casing, means for creating a pressure on the lubricant in said reservoir, outwardly extending hollow bosses formed on said casing through which air is adapted to pass from the casing, a cartridge of absorbent material in each of said bosses, the upper portion of said cartridge adapted to extend into the air passage, and the lower portion in communication with said reservoir, spring means for forcing said plug into the air passsage, and means in said casing for adjusting the position of said 'cartridge to vary the amount of surface exposed to the air current,whereby the amount of lubricant carried away by the air may be re ulated.

9. n air line oiler comprising a casing adapted to be connected to an air line, a lubricant reservoir in said casing, means lfor admitting air to said casing, outwardly extending hollow bosses on said casing through -which air is adaptedto pass from said casing, manually operable means for reventing air from passing through said sses, a recess in each of said bosses in communication with said reservoir, the pressure in said reservoir being substantially the same in the normal operation of the device as that of the air passing through said casing, an absorbent cartridge in eac-h of said recesses adapted to be saturated with lubricant from said reservoir, and partitions separating said recesses from each other for preventing an air current around the respective cartridges when certain of said bosses are closed.

10. An air line oiler comprising a casing adapted to be connected to an air line, a lubricant reservoir in said casing, means for admitting air to said casing, outwardly extendinghollow bomes on sald casmg through which air is adapted to pass from said casing, manually operable means tor preventing air from passing through said means for exposing a portion of each of said 10 bosses, a recess in each of said bosses cartridges tothe air current passing through in communication with said reservoir, the casing, and partitions separating Said the preure in said reservoir being substanrecesses from each other for preventing an 5 tiall the same in the normal operation of air current around the respective cartridges the device as that of the air passing through when certain of said bosses are closed. 15 said casing', an absorbent cartridge in each In testimony whereof I have signed this of said recessesadapted to be saturated with specification. lubricant from said reservoir, adjustable CHARLES C. HANSEN. 

